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Bulletin
No author available
· 1981
A Comparative Study of the Structure & Composition of Seedling & Scion Roots of the Apple
Frank Nutter Hewetson
· 1936
Rejuvenation of an Old Apple Orchard by Means of Fertilizers, Mulches and Cover Crops
Frank Nutter Hewetson
· 1953
No image available
New Herbicides for Controlling Poison Ivy in Apple Orchards
Frank Nutter Hewetson
· 1951
No image available
Re-establishing the Peach Orchard
Frank Nutter Hewetson
· 1953
No image available
History and Accomplishments of the Penn State Fruit Research Laboratory at Biglerville, 1918-1976
Pennsylvania State University. Agricultural Experiment Station
· 1981
No image available
A Telescopic Weed Boom and Attachments for Application of Liquid and Granular Herbicides
Frank Nutter Hewetson
· 1970
